diff options
Diffstat (limited to 'lib/Server')
| -rw-r--r-- | lib/Server/GTFS_RT.hs | 91 |
1 files changed, 42 insertions, 49 deletions
diff --git a/lib/Server/GTFS_RT.hs b/lib/Server/GTFS_RT.hs index 85ea8cd..e3a07cb 100644 --- a/lib/Server/GTFS_RT.hs +++ b/lib/Server/GTFS_RT.hs @@ -3,32 +3,10 @@ {-# LANGUAGE OverloadedStrings #-} {-# LANGUAGE RecordWildCards #-} {-# LANGUAGE TupleSections #-} -{-# LANGUAGE TypeApplications #-} module Server.GTFS_RT (gtfsRealtimeServer) where -import qualified Data.Sequence as Seq -import Data.Time.Clock.POSIX (getPOSIXTime) -import Data.Time.Clock.System (SystemTime (systemSeconds), - getSystemTime, - utcToSystemTime) -import GTFS.Realtime.Alert as AL (Alert (..)) -import GTFS.Realtime.Alert.Cause (Cause (CONSTRUCTION)) -import GTFS.Realtime.Alert.Effect (Effect (DETOUR)) -import GTFS.Realtime.Alert.SeverityLevel (SeverityLevel (WARNING)) -import GTFS.Realtime.EntitySelector as ES (EntitySelector (..)) -import GTFS.Realtime.FeedEntity as FE (FeedEntity (..)) -import GTFS.Realtime.FeedHeader (FeedHeader (FeedHeader)) -import GTFS.Realtime.FeedHeader.Incrementality (Incrementality (FULL_DATASET)) -import GTFS.Realtime.FeedMessage as FM (FeedMessage (..)) -import GTFS.Realtime.TimeRange (TimeRange (TimeRange)) -import GTFS.Realtime.TranslatedString (TranslatedString (TranslatedString)) -import GTFS.Realtime.TranslatedString.Translation (Translation (Translation)) -import GTFS.Realtime.TripDescriptor as TD (TripDescriptor (..)) import Prelude hiding (id) -import Text.ProtocolBuffers (Utf8 (Utf8), - defaultValue) -import Text.ProtocolBuffers.WireMessage (zzEncode64) import API (GtfsRealtimeAPI) import Control.Monad (forM) @@ -38,12 +16,16 @@ import Data.Functor ((<&>)) import Data.Maybe (catMaybes) import Data.Pool (Pool) import Data.Sequence (Seq) +import qualified Data.Sequence as Seq import Data.Text (Text) import qualified Data.Text as T import Data.Text.Encoding (encodeUtf8) -import Data.Time (Day) import Data.Time.Calendar (Day, toGregorian) import Data.Time.Clock (UTCTime) +import Data.Time.Clock.POSIX (getPOSIXTime) +import Data.Time.Clock.System (SystemTime (systemSeconds), + getSystemTime, + utcToSystemTime) import qualified Data.UUID as UUID import Data.Word (Word64) import Database.Persist (Entity (Entity), @@ -52,18 +34,29 @@ import Database.Persist (Entity (Entity), import Database.Persist.Postgresql (SqlBackend) import GHC.Float (double2Float) import GTFS (GTFS, TripID) +import GTFS.Realtime.Alert as AL (Alert (..)) +import GTFS.Realtime.Alert.SeverityLevel (SeverityLevel (WARNING)) +import GTFS.Realtime.EntitySelector as ES (EntitySelector (..)) +import GTFS.Realtime.FeedEntity as FE (FeedEntity (..)) +import GTFS.Realtime.FeedHeader (FeedHeader (FeedHeader)) +import GTFS.Realtime.FeedHeader.Incrementality (Incrementality (FULL_DATASET)) +import GTFS.Realtime.FeedMessage as FM (FeedMessage (..)) import GTFS.Realtime.Position as POS (Position (..)) +import GTFS.Realtime.TimeRange (TimeRange (TimeRange)) +import GTFS.Realtime.TranslatedString (TranslatedString (TranslatedString)) +import GTFS.Realtime.TranslatedString.Translation (Translation (Translation)) +import GTFS.Realtime.TripDescriptor as TD (TripDescriptor (..)) import GTFS.Realtime.VehicleDescriptor as VD (VehicleDescriptor (..)) import GTFS.Realtime.VehiclePosition as VP (VehiclePosition (..)) import Persist (Announcement (..), - EntityField (TripPingToken), + EntityField (..), Key (..), RunningTrip (..), TripPing (..), runSql) import Servant.API ((:<|>) (..)) -import Servant.Server (Handler (Handler), - Server) +import Text.ProtocolBuffers (Utf8 (Utf8), + defaultValue) import Server.Util (Service) @@ -95,28 +88,28 @@ gtfsRealtimeServer gtfs dbpool = handleServiceAlerts :<|> handleTripUpdates :<|> dFeedMessage $ Seq.fromList $ fmap mkAlert announcements where mkAlert (Entity (AnnouncementKey uuid) Announcement{..}) = (dFeedEntity (uuidUtf8 uuid)) - { alert = - (Just $ Alert - { active_period = [TimeRange Nothing Nothing defaultValue] + { alert = Just $ Alert + { active_period = [TimeRange Nothing Nothing defaultValue] -- TODO: is this time range reasonable, needed, etc.? - , informed_entity = - [dEntitySelector - { ES.trip = - Just (dTripDescriptor announcementTrip (Just announcementDay)) - } - ] - , cause = Nothing - , effect = Nothing - , url = fmap (lang "de" . toUtf8) announcementUrl - , header_text = Just $ lang "de" (toUtf8 announcementHeader) - , description_text = Just $ lang "de" (toUtf8 announcementMessage) - , tts_header_text = Nothing - , tts_description_text = Nothing - , severity_level = Nothing - , image = Nothing - , image_alternative_text = Nothing - , AL.ext'field = defaultValue - }) } + , informed_entity = + [dEntitySelector + { ES.trip = + Just (dTripDescriptor announcementTrip (Just announcementDay)) + } + ] + , cause = Nothing + , effect = Nothing + , url = fmap (lang "de" . toUtf8) announcementUrl + , header_text = Just $ lang "de" (toUtf8 announcementHeader) + , description_text = Just $ lang "de" (toUtf8 announcementMessage) + , tts_header_text = Nothing + , tts_description_text = Nothing + , severity_level = Nothing + , image = Nothing + , image_alternative_text = Nothing + , AL.ext'field = defaultValue + } + } handleTripUpdates = runSql dbpool $ do error "unimplemented!" -- TODO: how to propagate delay values to next stops? @@ -125,7 +118,7 @@ gtfsRealtimeServer gtfs dbpool = handleServiceAlerts :<|> handleTripUpdates :<|> (running :: [Entity RunningTrip]) <- selectList [] [] pings <- forM running $ \(Entity key entity) -> do selectFirst [TripPingToken ==. key] [] <&> fmap (, entity) - dFeedMessage $ Seq.fromList $ fmap mkPosition $ catMaybes pings + dFeedMessage $ Seq.fromList $ mkPosition <$> catMaybes pings where mkPosition (Entity (TripPingKey key) TripPing{..}, RunningTrip{..}) = (dFeedEntity (toUtf8 . T.pack . show $ key)) { FE.vehicle = Just $ VehiclePosition @@ -134,7 +127,7 @@ gtfsRealtimeServer gtfs dbpool = handleServiceAlerts :<|> handleTripUpdates :<|> Nothing -> Nothing Just trainset -> Just $ VehicleDescriptor { VD.id = Nothing - , VD.label = (Just (toUtf8 trainset)) + , VD.label = Just (toUtf8 trainset) , VD.license_plate = Nothing , VD.ext'field = defaultValue } |